CN113385518B - Waste glass treatment system - Google Patents
Waste glass treatment system Download PDFInfo
- Publication number
- CN113385518B CN113385518B CN202110530703.5A CN202110530703A CN113385518B CN 113385518 B CN113385518 B CN 113385518B CN 202110530703 A CN202110530703 A CN 202110530703A CN 113385518 B CN113385518 B CN 113385518B
- Authority
- CN
- China
- Prior art keywords
- belt
- iron
- waste glass
- conveyor belt
- fixed frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011521 glass Substances 0.000 title claims abstract description 153
- 239000002699 waste material Substances 0.000 title claims abstract description 134
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 278
- 229910052742 iron Inorganic materials 0.000 claims abstract description 139
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000011010 flushing procedure Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000010521 absorption reaction Methods 0.000 claims description 32
- 238000007599 discharging Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 description 56
- 238000004064 recycling Methods 0.000 description 13
- 238000004140 cleaning Methods 0.000 description 11
- 238000012216 screening Methods 0.000 description 10
- 238000005406 washing Methods 0.000 description 10
- 230000002349 favourable effect Effects 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The application relates to a waste glass treatment system, which sequentially comprises a coarse crushing device, a first conveyor belt, a flushing machine, a non-ferrous metal sorting machine and a crushing machine from the treatment process of waste glass, wherein the first conveyor belt is provided with an iron removal mechanism; the iron removing mechanism comprises a fixed frame, a first conveying belt and a first iron absorbing block, wherein supporting legs are fixedly arranged at the bottom of the fixed frame, and the fixed frame is arranged above the first conveying belt through supporting foot frames; the first transmission belt comprises an annular belt and a plurality of first transmission rollers abutted against the annular belt, at least one first transmission roller is connected with a first motor for driving the first transmission roller to rotate, and the first transmission roller is rotatably arranged on the fixed frame; a plurality of first baffles are fixedly mounted on the outer surface of the annular belt, each first baffle is arranged at intervals along the transmission direction of the annular belt, the first iron absorbing blocks are mounted on the fixed frame, and the annular belt surrounds the first iron absorbing blocks. This application has the effect that improves the efficiency that waste glass processing system handled waste glass.
Description
Technical Field
The application relates to the field of garbage recovery, in particular to a waste glass treatment system.
Background
Articles such as containers, windows and bulbs are common glass products in daily life. Waste glass is produced after the glass product is discarded, people generally recover the waste glass, and the recovered waste glass is treated and used as a raw material of a new glass product.
The related art discloses a waste glass processing system, including coarse crusher, first conveyer belt, flushing machine and rubbing crusher, the coarse crusher is installed in the feed end of first conveyer belt, and the flushing machine is installed in the discharge end of first conveyer belt, and the second conveyer belt is installed in the discharge side of flushing machine, and the rubbing crusher is installed in the discharge end of second conveyer belt. And the waste glass is poured into a crusher, and the crusher crushes the glass and then sends the crushed glass to a washing machine for washing through a first conveying belt. And conveying the washed waste glass on a second conveying belt, and then conveying the waste glass into a crusher for crushing.
In view of the above-mentioned related technologies, the inventor believes that iron-made metal impurities such as bottle caps and nameplates may exist in the waste glass, and the waste glass is crushed by the coarse crusher and then mixed with iron. The iron and the waste glass are mixed and discharged into a first conveyor belt, and then are treated by a flushing machine and a crushing machine for recycling. The waste glass thus recovered contains iron impurities, which have an influence on the formulation of new glass products.
Disclosure of Invention
In order to eliminate iron impurities in waste glass and improve the purity of the recovered waste glass, the application provides a waste glass treatment system.
The application provides a waste glass processing system adopts following technical scheme:
the utility model provides a waste glass processing system which characterized in that: the method comprises the steps of sequentially comprising a coarse crushing device, an iron removal mechanism, a flushing machine, a non-ferrous metal separator and a crusher according to the sequence of the treatment process of the waste glass; a first conveyor belt is arranged below the iron removing mechanism, the feed end of the first conveyor belt is connected with the coarse crushing device, the discharge end of the first conveyor belt is connected with the flushing machine, the iron removing mechanism comprises a fixed frame, a first conveyor belt and a first iron absorbing block, supporting legs are fixedly arranged at the bottom of the fixed frame, and the fixed frame is arranged above the first conveyor belt through supporting foot frames; the first transmission belt comprises an annular belt and a plurality of first transmission rollers abutted against the annular belt, at least one first transmission roller is connected with a first motor for driving the first transmission roller to rotate, and the first transmission roller is rotatably arranged on the fixed frame; a plurality of first baffles are fixedly mounted on the outer surface of the annular belt, each first baffle is arranged at intervals along the transmission direction of the annular belt, the first iron absorbing blocks are mounted on the fixed frame, the annular belt surrounds the first iron absorbing blocks, and the first transmission belt is erected above the first transmission belt.
Through adopting above-mentioned technical scheme, send into first conveyer belt after coarse crushing device is broken to waste glass. When the waste glass passes below the first conveying belt, the first iron absorption blocks absorb iron impurities contained in the waste glass, and the iron impurities are absorbed by the first iron absorption blocks and cling to the annular belt. First motor drive first driving roller rotates to drive the transmission of annular belt, annular belt transmission is followed to first baffle, thereby promotes the tip removal of iron impurity to first conveying belt. When the iron impurities move to the end of the first conveying belt, the attraction force of the first iron absorption block to the iron impurities is smaller than the weight of the iron impurities. The iron impurities are separated from the annular belt, so that the iron impurities contained in the waste glass can be removed, and the purity of the recovered waste glass is improved.
And then the waste glass is discharged into a washing machine by a first conveyor belt, and is discharged into a non-ferrous metal separator after being washed by the washing machine, the non-ferrous metal separator removes metals in the waste glass again and then is discharged into a crusher, and the crusher crushes the waste glass and then recycles the crushed waste glass.
Optionally, a distance from the first absorber block to the bottom surface of the endless belt is smaller than a distance from the first absorber block to the top surface of the endless belt, and a length of the first absorber block in a conveying direction of the first conveyor belt is greater than a width of the first conveyor belt.
Through adopting above-mentioned technical scheme, the attraction of annular belt bottom to iron impurity is greater than the attraction of top to iron impurity like this, and this is favorable to iron impurity to adsorb in the bottom surface of first conveying belt. Meanwhile, the length of the first iron absorption block along the conveying direction of the first conveying belt is larger than the width of the first conveying belt, so that the first iron absorption block can cover the waste glass passing through the lower part of the first conveying belt. Thereby removing the iron impurities protected by the waste glass.
Optionally, one end of the first transmission belt is provided with an iron discharging hopper, the iron discharging hopper is fixedly mounted on the supporting legs, and a collecting box is arranged at the discharging end of the iron discharging hopper.
Through adopting above-mentioned technical scheme, the iron impurity that adsorbs at endless belt is moving the in-process of first conveyer belt tip, and first iron absorption piece reduces iron impurity's appeal gradually to make iron impurity and endless belt get into the iron discharging fill at the tip separation of first conveyer belt. The iron impurities are discharged into the collecting box through the iron discharging hopper for recycling.
Optionally, a brush roller is installed at the bottom of one end, close to the iron discharging bucket, of the fixing frame, a second motor is installed at one end of the brush roller, the brush roller abuts against the annular belt, and the rotating direction of the brush roller is opposite to the transmission direction of the first transmission belt.
Through adopting above-mentioned technical scheme, the second motor drive brush roller rotates to make the brush roller clear up the annular belt. This facilitates cleaning of iron impurities adsorbed on the endless belt.
Optionally, a roller is fixedly mounted at the top of the first iron absorbing block, a sliding groove for sliding of the roller is formed in the fixing frame, a push plate is fixedly mounted on one side of the first iron absorbing block, an expansion cylinder is fixedly mounted on the fixing frame, and a piston rod of the expansion cylinder is fixedly connected with the push plate.
By adopting the technical scheme, the telescopic cylinder is started, and the piston rod of the telescopic rod repeatedly extends out and retracts. Thereby make the piston rod of telescopic link promote the push pedal, the push pedal drives first magnet absorption piece and removes along the spout. When the waste glass is conveyed to the lower part of the first iron absorption block by the first conveyor belt, the first iron absorption block moves in a reciprocating manner, so that iron impurities contained in the waste glass are driven to move. Therefore, the iron impurities pressed at the bottom by the waste glass continuously move, so that the waste glass is flushed out and adsorbed on the annular belt. This is favorable to first iron absorption piece to be rejected by the iron impurity of being pressed at waste glass bottom.
Optionally, fixed frame top fixed mounting has rings, and rings are provided with the lifting rope, the supporting legs includes screw rod, telescopic link and sleeve, the screw that supplies the screw rod to peg graft is seted up to fixed frame, the one end that fixed frame was kept away from to the screw rod is articulated with the telescopic link, the sleeve can cup joint in telescopic link and screw rod simultaneously through the screw thread.
Through adopting above-mentioned technical scheme, according to the site environment of installation deironing mechanism, accessible rings and lifting rope will fix the width and suspend in midair in the top of first conveyer belt, also can support on ground through the supporting legs. When the fixed frame is suspended above the first conveyor belt, the screw rod is rotated, so that the supporting legs can be detached, and then the distance between the iron removing mechanism and the first conveyor belt can be conveniently adjusted by adjusting the length of the lifting rope. The waste glass conveying belt is characterized in that the first conveyor belt is provided with a first iron absorption block, the first iron absorption block is arranged on the first conveyor belt, the first conveyor belt is arranged on the second conveyor belt, the first iron absorption block is arranged on the second conveyor belt, and the second conveyor belt is arranged on the second conveyor belt.
When the fixed frame is arranged above the first conveyor belt through the supporting foot frame, the telescopic rod is rotated to be perpendicular to the bottom surface of the fixed frame. Then the sleeve is rotated, and the sleeve is simultaneously sleeved on the screw rod and the telescopic rod, so that the telescopic rod is limited to rotate. Then the length of the telescopic rod is adjusted, and the first conveying belt is horizontally placed above the first conveying belt. The distance between adjustable deironing mechanism and the first conveyer belt through the telescopic link, this be favorable to having sufficient space between first conveyer belt and the annular belt and supply old and useless glass to pass through, first iron absorption piece is close to as far as possible to first conveyer belt simultaneously, and iron impurity appeal reinforcing that first iron absorption piece contains old and useless glass.
Optionally, the mounting panel is installed to the one end that the screw rod was kept away from to the telescopic link, through first bolted connection between mounting panel and the first conveyer belt, telescopic outer bucket wall articulates there is the connecting rod, the free end fixed mounting of connecting rod has first connection piece, the pole body fixed mounting of telescopic link has the second connection piece, through second bolted connection between first connection piece and the second connection piece.
Through adopting above-mentioned technical scheme, when fixed frame passes through rings and lifting rope and suspends in midair in the top of first conveyer belt, rotate the telescopic link, let telescopic link and screw rod perpendicular. The connecting rod is rotated to enable the first connecting piece and the second connecting piece to be attached and then locked through the second bolt. The length of adjustment telescopic link lets the mounting panel paste in one side of first conveyer belt, later fixes through first bolt. This is advantageous for keeping the frame stable when suspended. Meanwhile, the supporting legs and the lifting ropes play a supporting role for the fixed frame, so that the load of the lifting ropes is reduced.
Optionally, the first conveyer belt is further provided with a plurality of paper removing mechanisms, the paper removing mechanisms are arranged at intervals along the transmission direction of the first conveyer belt, each paper removing mechanism comprises a recycling box and a blower, the recycling box is provided with a plurality of air outlets, the air outlets are distributed on the surface of the recycling box, the recycling box is arranged on one side of the first conveyer belt, the blower is arranged on the other side of the first conveyer belt, and an air blowing port of the blower faces the recycling box.
By adopting the technical scheme, the waste glass can also contain a plurality of paper scraps, when the waste glass is conveyed by the first conveying belt, the blower is started, and blows the paper scraps contained in the waste glass to the recycling bin, so that the paper scraps in the waste glass are removed. Compared with the manual waste glass paper scrap removing method, the waste glass paper scrap removing efficiency is higher. The air blown to the recycling box from the blower is discharged through the air outlet hole, so that the situation that the air is returned after striking the inner wall of the box body is favorably reduced, and the paper scraps in the waste glass are rejected
Optionally, two frames are installed on the first conveying belt, the two frames are located on two sides of the fixing frame respectively, a plurality of supporting rods are installed at the top of the frame, the supporting rods are arranged at equal intervals along the top of the frame, and one end, far away from the top of the frame, of each supporting rod faces the first conveying belt.
By adopting the technical scheme, the waste glass can collide with the supporting rod in the conveying process of the first conveying belt, so that the supporting rod can stir the waste glass. So that the iron impurities are stirred out, which is favorable for the first iron absorption block to absorb the iron impurities out.
Optionally, a plurality of roller sets are arranged inside the first conveying belt, the roller sets are arranged at intervals along the transmission direction of the first conveying belt, each roller set comprises a fixing rod, a base and an oblique roller, the fixing rods are arranged inside the first conveying belt, the bases and the oblique rollers are respectively provided with two bases which are respectively and fixedly arranged at two ends of the fixing rods, and the oblique rollers are obliquely arranged on the bases.
Through adopting above-mentioned technical scheme, the upper band body and the oblique roller contact of the upper band body of first conveyer belt to the both sides that make the upper band body of first conveyer belt upwards stick up, and this is favorable to restricting old and useless glass to first conveyer belt both sides removal, thereby plays the condition that prevents that old and useless glass from the edge of first conveyer belt both sides from dropping and appears.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the waste glass is crushed by the first coarse crusher and the second coarse crusher, paper contained in the waste glass is removed by the crushed waste glass through the paper removing mechanism, and metals contained in the waste glass are removed by the iron removing mechanism and the nonferrous metal sorting machine, so that impurities contained in the waste glass are removed, and the waste glass is convenient to recycle;
2. the waste glass is stirred through the supporting rod, so that paper scraps contained in the waste glass are turned out, the paper scraps are conveniently blown to the recovery box by a blower, and the paper scraps contained in the waste glass are conveniently removed;
3. the two sides of the top surface of the first conveying belt are supported by the oblique rollers, so that the two sides of the top surface of the first conveying belt are tilted upwards, and the situation that the waste glass falls from the first conveying belt is reduced.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic structural view of an iron removing mechanism according to embodiment 1 of the present application;
FIG. 3 is a schematic structural view of a strut of example 1 of the present application;
FIG. 4 is a schematic structural view of a roller set according to embodiment 1 of the present application;
FIG. 5 is a schematic view of the fixed frame supported on the ground in embodiment 2 of the present application;
FIG. 6 is a schematic view of a roller set according to embodiment 2 of the present application;
FIG. 7 is a schematic view of the fixed frame suspension according to embodiment 2 of the present application;
FIG. 8 is an enlarged view of FIG. 7 at A;
FIG. 9 is a partial mechanism schematic view of embodiment 2 of the present application, mainly embodying the structure of a first iron-absorbing block;
fig. 10 is a schematic structural view of a second conveying belt in embodiment 3 of the present application.
Description of reference numerals: 1. a first conveyor belt; 2. a washing machine; 3. a non-ferrous metal separator; 4. a pulverizer; 5. a coarse crushing device; 51. a second conveyor belt; 52. a third conveyor belt; 53. a fourth conveyor belt; 54. a screening machine; 55. a first coarse crusher; 56. a second coarse crusher; 57. a first cleaning machine; 58. a second cleaning machine; 6. a deironing mechanism; 61. a fixing frame; 62. a first iron absorption block; 63. a first conveyor belt; 631. an endless belt; 632. a first drive roller; 7. a connecting rod; 8. a material guide plate; 9. a paper removing mechanism; 91. a recycling bin; 92. a blower; 10. an air outlet; 11. a frame; 12. a strut; 13. a roller set; 131. fixing the rod; 132. a skew roller; 133. a base; 14. supporting legs; 141. a screw; 142. a telescopic rod; 143. a sleeve; 15. a shielding plate; 16. a diagonal bar; 17. a horizontal bar; 18. a hoisting ring; 19. a lifting rope; 20. a screw hole; 21. a first bolt; 22. a second bolt; 23. a first connecting piece; 24. a second connecting sheet; 25. mounting a plate; 26. a roller; 27. a chute; 28. a telescopic cylinder; 29. pushing the plate; 30. a brush roller; 31. a first motor; 32. a second motor; 33. an iron discharging hopper; 34. a collection box; 35. a first baffle plate; 36. a second baffle; 37. a support frame; 38. a second conveyor belt; 381. a belt body; 382. a third motor; 383. a second driving roller; 384. a driven roller; 39. a second iron-attracting block; 40. and a third baffle.
Detailed Description
The present application is described in further detail below with reference to figures 1-10.
Example 1
The embodiment 1 of the application discloses a waste glass treatment system.
Referring to fig. 1, the waste glass treatment system sequentially comprises a coarse crushing device 5, a first conveyor belt 1, a flushing machine 2, a non-ferrous metal sorting machine 3 and a crushing machine 4 from the upstream of the working procedure to the downstream of the working procedure; the coarse crushing device 5 includes a second conveyor belt 51, a third conveyor belt 52, a fourth conveyor belt 53, a sizing machine 54, a first coarse crusher 55, a second coarse crusher 56, a first washing machine 57, and a second washing machine 58.
The first coarse crusher 55 is installed at the feeding end of the second conveyor belt 51, and the discharge port of the first coarse crusher 55 faces the second conveyor belt 51, so that the waste glass is directly discharged into the second conveyor belt 51 after being put into the first coarse crusher 55. The screening machine 54 is arranged at the discharge end of the second conveyor belt 51, and the second conveyor belt 51 discharges the crushed waste glass into the screening machine 54 for screening.
Referring to fig. 1, the waste glass is screened by the screening machine 54 to form small glass and large glass, and the screening machine 54 has a fine discharging end for discharging the small glass and a coarse discharging end for discharging the large glass. The third conveyor belt 52 is arranged at the coarse discharging end of the screening machine 54, the second coarse crusher 56 is arranged at the discharging end of the third conveyor belt 52, and the third conveyor belt 52 sends the large glass into the second coarse crusher 56 for crushing again. The first washer 57 is disposed at the discharge end of the second coarse crusher 56 and the fourth conveyor 53 is disposed at the discharge end of the first washer 57. A material guide plate 8 is arranged between the discharge end of the fourth conveyor belt 53 and one side of the first conveyor belt 1, one side of the material guide plate 8 is fixedly connected with the fourth conveyor belt 53, and the other side of the material guide plate 8 is fixedly connected with the first conveyor belt 1. A shielding plate 15 is fixedly arranged on one side of the first conveyor belt 1 far away from the material guide plate 8.
Referring to fig. 1 and 2, the second cleaning machine 58 is disposed at the fine discharge end of the screening machine 54, and the first conveyor belt 1 is disposed at the discharge end of the second cleaning machine 58. The first conveyor belt 1 is provided with a deironing mechanism 6 and a paper removing mechanism 9. The paper removing mechanism 9 is provided in plurality, and each paper removing mechanism 9 is provided at intervals in the conveying direction of the first conveyor belt 1. The paper removing mechanism 9 includes a recovery tank 91 and a blower 92. The recycling box 91 is provided with a plurality of air outlet holes 10, and the air outlet holes 10 are distributed on the surface of the recycling box 91. The recovery box 91 is provided on one side of the first conveyor belt 1, the blower 92 is attached to the other side of the first conveyor belt 1, and the air outlet of the blower 92 faces the recovery box 91.
The first cleaning machine 57 and the second cleaning machine 58 clean the waste glass by using the degumming water, and the waste glass is separated from the paper scraps. Then, the paper scrap is blown to the recovery box 91 by the blower 92, so that the paper scrap contained in the waste glass is removed.
Referring to fig. 1 and 2, the iron removing mechanism 6 is located in a downstream process of the paper removing mechanism 9, the iron removing mechanism 6 includes a fixing frame 61, a first conveyor belt 63, and a first iron block 62, the fixing frame 61 is mounted above the first conveyor belt 1, and the supporting legs 14 are fixedly mounted at the bottom of the fixing frame 61. The first conveyor belt 63 is perpendicular to the first conveyor belt 1, and the first conveyor belt 63 includes an endless belt 631 and a plurality of first driving rollers 632 abutting against the endless belt 631. In the embodiment of the present application, there are four first transmission rollers 632, two first transmission rollers 632 are rotatably connected to the bottom of the fixed frame 61, and the other two first transmission rollers 632 are rotatably connected to the top of the fixed frame 61. The first driving roller 632 is connected to a first motor 31 for driving the first driving roller 632 to rotate. First baffles 35 are fixedly mounted on the surface of the endless belt 631, and the first baffles 35 are arranged at intervals in the conveying direction of the endless belt 631.
Referring to fig. 1 and 2, the first iron block 62 is mounted to the fixing frame 61 and surrounded by an endless belt 631. The highest point of the first suction iron block 62 is lower than the highest point of the fixing frame 61, and the lowest point of the first suction iron block 62 is lower than the lowest point of the fixing frame 61, so that the distance from the first suction iron block 62 to the bottom surface of the first conveyor belt 63 is smaller than the distance from the first suction iron block 62 to the top surface of the first conveyor belt 63.
Iron impurities in the waste glass are attracted through the first iron-attracting blocks 62, so that the iron impurities are adsorbed on the first conveying belt 63. The first conveying belt 63 drives the iron impurities to be far away from the first iron absorption block 62, so that the attraction of the first iron absorption block 62 to the iron impurities is reduced, and the iron impurities are thrown out after being separated from the first conveying belt 63.
Referring to fig. 1 and 3, frames 11 are provided at both sides of a fixing frame 61, and the frames 11 are fixedly mounted to the first conveyor belt 1. A plurality of supporting rods 12 are fixedly mounted at the top of the frame 11, the supporting rods 12 are arranged at equal intervals along the width direction of the first conveyor belt 1, and one end of each supporting rod 12, which is far away from the top of the frame 11, faces the first conveyor belt 1.
Referring to fig. 1 and 4, a plurality of roller sets 13 are disposed at intervals along the length of the first conveyor belt 1, and the roller sets 13 are disposed inside the first conveyor belt 1. The roller set 13 includes a fixing rod 131, two bases 133 and two inclined rollers 132, the two bases 133 and the two inclined rollers 132 are respectively installed at two ends of the fixing rod 131, and the inclined rollers 132 are obliquely installed on the bases 133. The oblique roller 132 abuts against the first conveyor belt 1. The both sides of the top surface of the first conveyor belt 1 are inclined by being supported from both sides of the first conveyor belt 63 by the inclined rollers 132. This is advantageous in reducing the occurrence of the waste glass falling from both side edges of the first conveyor belt 1.
Referring to fig. 1, a washer 2 is disposed at a discharge end of a first conveyor belt 1, a distributor is disposed at a discharge end of the washer 2, a non-ferrous metal separator 3 is disposed at a discharge end of the distributor, and a pulverizer 4 is disposed at a discharge end of the non-ferrous metal separator 3. The waste glass is conveyed to a washing machine 2 by a first conveyor belt 1 to be washed, the washed waste glass is discharged into a non-ferrous metal sorting machine 3, metal which is not attracted by magnetic force and contained in the waste glass is removed through the non-ferrous metal sorting machine 3, and the waste glass enters a crushing machine 4 to be crushed and then recovered.
The application principle of the waste glass treatment system in the embodiment 1 of the application is as follows: the waste glass enters a first coarse crusher 55 for crushing, and the waste glass is mixed with metal. The crushed glass is discharged into the second conveyor 51. The second conveyor belt 51 feeds the waste glass into the screening machine 54, the screening machine 54 discharges the small waste glass into the second cleaning machine 58, and the waste glass is cleaned by the glue removing agent in the second cleaning machine 58, so that the glass is separated from the paper scraps. The large waste glass is discharged into a third conveyor 52. The third conveyor 52 feeds the large waste glass to the second coarse crusher 56 for crushing again, which is beneficial to ensure thorough metal mixing of the waste glass, and then the waste glass is discharged into the first cleaning machine 57, and the waste glass is cleaned by using degumming water in the first cleaning machine 57, so that the glass is separated from paper scraps. The cleaned waste glass is then fed to the first conveyor 1 via a fourth conveyor 53.
The waste glass is conveyed on the first conveyor belt 1, the support rod 12 stirs the waste glass, and the blower 92 blows air to the waste glass, so that paper scraps contained in the waste glass are blown to the recycling bin 91. First iron absorption block 62 attracts the iron impurity that receives the magnetic attraction that contains in the old and useless glass to make these metals adsorb on the surface of first conveyer belt 63, first conveyer belt 63 transmission, thereby drive iron impurity and keep away from first iron absorption block 62, when first iron absorption block 62 reduces to being less than the required power of iron impurity adsorption on the surface of first conveyer belt 63 at iron impurity's the attraction, iron impurity and the separation of first conveyer belt 63. Thereby removing the iron impurities contained in the waste glass and attracted by magnetic force.
And then the waste glass is discharged into a washing machine 2 from the discharge end of the first conveying, and the washing machine 2 further cleans the waste glass and then conveys the cleaned waste glass into a nonferrous metal separator 3. The non-ferrous metal sorter 3 rejects metals which are contained in the waste glass and are not attracted by magnetic force. And then the waste glass is discharged into a crusher 4, and the waste glass is crushed by the crusher 4 and recycled.
Example 2
Referring to fig. 5 and 6, a waste glass treatment system in embodiment 2 of the present application is different from embodiment 1 in that the diameter of the struts 12 is gradually increased from one end near the top of the frame 11 to the other end, so that the distance between two adjacent struts 12 is gradually decreased from one end near the top of the frame 11 to the other end. Therefore, after the waste glass collides with the supporting rods 12, the waste glass close to the bottom is less prone to passing through the two adjacent supporting rods 12, the waste glass can be stacked mutually and then fall off backwards, and therefore the stirring effect of the supporting rods 12 on the waste glass is improved.
One end of the supporting rod 12, which is far away from the top of the frame 11, is connected with an inclined rod 16, the inclined rod 16 is connected with a horizontal rod 17 which is parallel to the top surface of the first conveyor belt 1, and the middle part of the horizontal rod 17 is bent towards one side far away from the first conveyor belt 1. Therefore, when the waste glass is conveyed by the first conveyor belt 1, the horizontal rod 17 scoops up the waste glass, and then the waste glass climbs upwards after contacting with the inclined rod 16, so that the waste glass is stacked and falls backwards, and meanwhile, the waste glass is jacked up by bending of the horizontal rod 17. This is favorable to improving the stirring effect of the support rod 12 on the waste glass.
Referring to fig. 5 and 7, a hanging ring 18 is fixedly mounted on the top of the fixed frame 61, and the hanging ring 18 is provided with a hanging rope 19. The supporting leg 14 includes a screw 141, an expansion link 142 and a sleeve 143, the fixing frame 61 is provided with a screw hole 20 for the screw 141 to be inserted, one end of the screw 141 far away from the fixing frame 61 is hinged to the expansion link 142, and the sleeve 143 is connected to the expansion link 142 and the screw 141 through threads and can be sleeved at the same time.
Referring to fig. 5, 7 and 8, the mounting plate 25 is attached to one end of the extendable rod 142 remote from the screw 141, and when the fixed frame 61 is supported on the ground by the support legs 14, the mounting plate 25 abuts against the ground. The mounting plate 25 may be connected to the first conveyor belt 1 by the first bolt 21 while being suspended above the first conveyor belt 1 by the hoist rope 19 and the hoist ring 18.
The outer barrel wall of the sleeve 143 is hinged with a connecting rod 7, a free end of the connecting rod 7 is fixedly provided with a first connecting piece 23, a shaft of the telescopic rod 142 is fixedly provided with a second connecting piece 24, the first connecting piece 23 is connected with the second connecting piece 24 through a second bolt 22, when the telescopic rod 142 is rotated to be perpendicular to the screw rod 141, the first connecting piece 23 is connected with the second connecting piece 24 through the second bolt 22, and therefore the telescopic rod 142 is limited from rotating. The mounting plate 25 is then connected to the first conveyor belt 1 by the first bolt 21, so that the fixing frame 61 is supported by the lifting rope 19 together with the support leg 14.
Referring to fig. 9, a plurality of rollers 26 are fixedly mounted on the top of the first iron-absorbing block 62, and sliding grooves 27 for the rollers 26 to move are formed in one side of the fixing frame 61 close to the feeding end and the discharging end of the first conveyor belt 1. The fixed frame 61 is fixedly provided with the telescopic cylinder 28, a piston rod of the telescopic cylinder 28 is fixedly provided with the push plate 29, and the push plate 29 is fixedly connected with the first iron absorbing block 62.
The piston rod of the telescopic cylinder 28 repeatedly extends or retracts, so that the push plate 29 is pushed, and the push plate 29 drives the first iron absorption block 62 to reciprocate along the length direction of the sliding chute 27. The first iron attracting block 62 performs a reciprocating motion, thereby moving iron impurities contained in the waste glass passing under the first iron attracting block 62. Thus, the iron impurities pressed on the waste glass can easily push the waste glass to be absorbed by the first iron absorbing block 62 and then absorbed on the annular belt 631.
Referring to fig. 5, a brush roller 30 is disposed above the iron bucket 33, the brush roller 30 is mounted on a fixing frame 61, a second motor 32 for driving the brush roller 30 to rotate is mounted at one end of the brush roller 30, brushes of the brush roller 30 abut against an endless belt 631, and the rotation direction of the brush roller 30 is opposite to the transmission direction of the first transmission belt 63. The second baffle plate 36 is fixedly installed at one end of the fixing frame 61 close to the brush roller 30, and the iron impurities separated from the first conveying belt 63 are blocked by the second baffle plate 36, so that the situation that the iron impurities fly out of the iron hopper 33 under the action of inertia when the iron impurities are separated from the first conveying belt 63 is reduced.
The application principle of the waste glass treatment system in embodiment 2 of the application is as follows: when the waste glass is conveyed by the first conveyor belt 1, the horizontal rods 17 scoop the waste glass, and then the waste glass ascends under the guidance of the inclined rods 16. Meanwhile, the distance between the two support rods 12 is gradually reduced from one end close to the top of the frame 11 to the other end, so that waste glass at the bottom cannot easily pass through, and the waste glass is accumulated and then falls behind. This is favorable to improving the effect of branch 12 to stirring waste glass to make things convenient for first iron absorption piece 62 to attract the iron impurity that waste glass contains.
The first iron absorption block 62 absorbs iron impurities, the iron impurities are absorbed on the first transmission belt 63, the iron impurities are conveyed to the end portion of the first transmission belt 63 along with the transmission of the first transmission belt 63, at this time, the second motor 32 drives the brush roller 30 to rotate, and the brush roller 30 sweeps the iron impurities absorbed on the first transmission belt 63 into the iron discharging hopper 33.
The fixing frame 61 may be suspended above the first conveyor 1 by a hanging ring 18 and a hanging rope 19 or may be supported on the ground by the supporting legs 14 according to an installation environment at a site. When the fixed frame 61 is supported on the ground by the support legs 14, the telescopic rod 142 is perpendicular to the bottom surface of the fixed frame 61, and the sleeve 143 is fitted over both the screw 141 and the telescopic rod 142. When the fixed frame 61 is suspended above the first conveyor 1 by the hanging ring 18 and the hanging rope 19, the telescopic link 142 is rotated to make the telescopic link 142 perpendicular to the screw rod 141, the first connection piece 23 and the second connection piece 24 are connected by the second bolt 22, and the mounting plate 25 is connected to the first conveyor 1 by the first bolt 21. So that the support legs 14 and the lifting cord 19 together support the fixed frame 61.
When the waste glass passes below the first iron absorption block 62, the first iron absorption block 62 is controlled by the telescopic cylinder 28 to reciprocate, so that iron impurities pressed at the bottom of the waste glass move, and the waste glass is pushed open after the iron impurities move and is absorbed by the first iron absorption block 62.
The second motor 32 drives the brush roller 30 to rotate, so that the brush roller 30 brushes off iron impurities adsorbed on the surface of the endless belt 631.
Example 3
Referring to fig. 2 and 10, a waste glass treatment system in embodiment 3 of the present application is different from embodiment 1 in that a first conveyor belt 63 is provided with a second conveyor belt 38 and a support frame 37 at an end close to a collection box 34, and the second conveyor belt 38 includes a belt body 381, a third motor 382, a second driving roller 383, and a driven roller 384.
The second driving roller 383 is erected above the collection box 34 through the supporting frame 37, the third motor 382 is connected with the second driving roller 383, and the third motor 382 is used for driving the second driving roller 383 to rotate. Two driven rollers 384 are provided, one driven roller 384 being rotatably connected to the fixed frame 61, and the other driven roller 384 being rotatably connected to the support leg 14.
Referring to fig. 2 and 10, the belt body 381 surrounds the second driving roller 383 and each driven roller 384, and the second driving roller 383 and each driven roller 384 abut against the belt body 381. A second iron absorption block 39 is arranged between the two driven rollers 384, and the second iron absorption block 39 is fixedly arranged on the supporting leg 14.
A plurality of third baffles 40 are fixedly mounted on the outer surface of the belt body 381, and the third baffles 40 are arranged at intervals along the transmission direction of the second conveyor belt 38.
The application principle of the waste glass treatment system in the embodiment 3 of the application is as follows: when the first transfer belt 63 transfers the iron impurities to the end near the second transfer belt 38, the second iron attracting block 39 attracts the iron impurities adsorbed to the first transfer belt 63 to the belt body 381. The third motor 382 drives the second driving roller 383 to rotate, so as to drive the belt body 381 to perform driving. The third baffle 40 is driven by the belt body 381 to push the iron impurities to the end of the second conveyor belt 38 away from the first conveyor belt 63, so that the attraction of the second iron-attracting block 39 to the iron impurities is reduced, and the iron impurities are separated from the second conveyor belt 38 and fall into the collection box 34.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a waste glass processing system which characterized in that: the waste glass treatment device sequentially comprises a coarse crushing device (5), an iron removal mechanism (6), a flushing machine (2), a non-ferrous metal sorting machine (3) and a crushing machine (4) according to the sequence of the waste glass treatment process; a first conveyor belt (1) is arranged below the iron removing mechanism (6), the feed end of the first conveyor belt (1) is connected with the coarse crushing device (5), the discharge end of the first conveyor belt (1) is connected with the flushing machine (2), the iron removing mechanism (6) comprises a fixing frame (61), a first conveyor belt (63) and a first iron absorbing block (62), supporting legs (14) are fixedly installed at the bottom of the fixing frame (61), and the fixing frame (61) is erected above the first conveyor belt (1) through the supporting legs (14); the first transmission belt (63) comprises an annular belt (631) and a plurality of first transmission rollers (632) abutted against the annular belt (631), at least one first transmission roller (632) is connected with a first motor (31) driving the first transmission roller (632) to rotate, and the first transmission roller (632) is rotatably mounted on the fixed frame (61); the outer fixed surface of the annular belt (631) is provided with a plurality of first baffles (35), each first baffle (35) is arranged along the transmission direction interval of the annular belt (631), the first iron absorbing block (62) is installed on the fixed frame (61), the annular belt (631) surrounds the first iron absorbing block (62), the first transmission belt (63) is erected above the first transmission belt (1), the top of the fixed frame (61) is fixedly provided with a lifting ring (18), the lifting ring (18) is provided with a lifting rope (19), the supporting leg (14) comprises a screw rod (141), an installation rod, an expansion rod (142) and a sleeve (143), the fixed frame (61) is provided with a screw hole (20) for the screw rod (141) to be inserted, one end of the screw rod (141) far away from the fixed frame (61) is hinged with the installation rod, and the other end of the installation rod is hinged with the expansion rod (142), sleeve (143) can cup joint in installation pole and screw rod (141) simultaneously through the screw thread, telescopic link (142) are kept away from the one end of screw rod (141) and are installed mounting panel (25), connect through first bolt (21) between mounting panel (25) and first conveyer belt (1), the outer bucket wall of sleeve (143) articulates there is connecting rod (7), the free end fixed mounting of connecting rod (7) has first connection piece (23), the club body fixed mounting of telescopic link (142) has second connection piece (24), connect through second bolt (22) between first connection piece (23) and second connection piece (24).
2. The waste glass treatment system according to claim 1, wherein: the distance from the first iron block (62) to the bottom surface of the annular belt (631) is smaller than the distance from the first iron block (62) to the top surface of the annular belt (631), and the length of the first iron block (62) in the conveying direction of the first conveyor belt (63) is larger than the width of the first conveyor belt (1).
3. The waste glass treatment system according to claim 1, wherein: one end of the first conveying belt (63) is provided with an iron discharging hopper (33), the iron discharging hopper (33) is fixedly installed on the supporting legs (14), and a collecting box (34) is arranged at the discharging end of the iron discharging hopper (33).
4. The waste glass treatment system according to claim 3, wherein: the bottom of the fixed frame (61) close to one end of the iron discharging hopper (33) is provided with a brush roller (30), one end of the brush roller (30) is provided with a second motor (32), the brush roller (30) abuts against an annular belt (631), and the rotating direction of the brush roller (30) is opposite to the transmission direction of the first transmission belt (63).
5. The waste glass treatment system according to claim 1, wherein: first iron absorption piece (62) top fixed mounting has gyro wheel (26), spout (27) that supply gyro wheel (26) to slide are seted up to fixed frame (61), first iron absorption piece (62) one side fixed mounting has push pedal (29), fixed frame (61) fixed mounting has telescopic cylinder (28), the piston rod and push pedal (29) fixed connection of telescopic cylinder (28).
6. The waste glass treatment system according to claim 1, wherein: first conveyer belt (1) still is equipped with a plurality of paper mechanisms (9) that remove, remove paper mechanism (9) and set up along the transmission direction interval of first conveyer belt (1), it includes collection box (91) and hair-dryer (92) to remove paper mechanism (9), a plurality of ventholes (10) have been seted up in collection box (91), venthole (10) distribute in the lateral wall of collection box (91), collection box (91) set up in one side of first conveyer belt (1), the opposite side in first conveyer belt (1) is installed in hair-dryer (92), the mouth of blowing of hair-dryer (92) is towards collection box (91).
7. The waste glass treatment system according to claim 6, wherein: two frames (11) are installed in first conveyer belt (1), two frame (11) are located fixed frame (61) both sides respectively, many spinal branch poles (12) are installed at the top of frame (11), frame (11) top equidistance is arranged along branch pole (12), the one end at frame (11) top is kept away from in branch pole (12) is towards first conveyer belt (1).
8. The waste glass treatment system according to claim 1, wherein: first conveyer belt (1) is inside to be provided with a plurality of roller set (13), the transmission direction interval setting of first conveyer belt (1) is followed in roller set (13), roller set (13) are including dead lever (131), base (133) and oblique roller (132), dead lever (131) are installed inside first conveyer belt (1), base (133) and oblique roller (132) all have two, two base (133) fixed mounting is in the both ends of dead lever (131) respectively, oblique roller (132) slope is installed in base (133).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110530703.5A CN113385518B (en) | 2021-05-15 | 2021-05-15 | Waste glass treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110530703.5A CN113385518B (en) | 2021-05-15 | 2021-05-15 | Waste glass treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113385518A CN113385518A (en) | 2021-09-14 |
| CN113385518B true CN113385518B (en) | 2022-04-05 |
Family
ID=77617032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110530703.5A Active CN113385518B (en) | 2021-05-15 | 2021-05-15 | Waste glass treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113385518B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206009401U (en) * | 2016-08-25 | 2017-03-15 | 四川中科玻璃有限公司 | Cullet recycles processing equipment |
| CN108296018A (en) * | 2018-03-30 | 2018-07-20 | 陈汝壮 | A kind of machining metal bits screening plant |
| CN207722934U (en) * | 2017-10-30 | 2018-08-14 | 上海燕龙基再生资源利用有限公司 | Cullet is crushed impurity removed system |
| CN210449514U (en) * | 2019-08-07 | 2020-05-05 | 湖北三峡新型建材股份有限公司 | Broken glass deironing device |
| CN212663873U (en) * | 2020-06-23 | 2021-03-09 | 唐山弘也水泥有限公司 | Cement raw material deironing device |
-
2021
- 2021-05-15 CN CN202110530703.5A patent/CN113385518B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206009401U (en) * | 2016-08-25 | 2017-03-15 | 四川中科玻璃有限公司 | Cullet recycles processing equipment |
| CN207722934U (en) * | 2017-10-30 | 2018-08-14 | 上海燕龙基再生资源利用有限公司 | Cullet is crushed impurity removed system |
| CN108296018A (en) * | 2018-03-30 | 2018-07-20 | 陈汝壮 | A kind of machining metal bits screening plant |
| CN210449514U (en) * | 2019-08-07 | 2020-05-05 | 湖北三峡新型建材股份有限公司 | Broken glass deironing device |
| CN212663873U (en) * | 2020-06-23 | 2021-03-09 | 唐山弘也水泥有限公司 | Cement raw material deironing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113385518A (en) | 2021-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111545290A (en) | Sorting device is retrieved to building rubbish | |
| KR101061166B1 (en) | Screening systems and screening methods of waste | |
| KR20120084825A (en) | System of equipment for separating of impurity content by high pressure wind power for production of recyling grevel from constructional waste materials in recycling system | |
| CN112474727B (en) | Construction waste recycling production line | |
| CN109967494B (en) | Process method and system device for treating construction waste | |
| CN211726487U (en) | Building rubbish separator | |
| CN101954306B (en) | Biomass waste crushing system | |
| JP2016087952A (en) | Recycling treatment apparatus | |
| US20060243301A1 (en) | System and process for producing clean glass aggregate from recycled glass | |
| CN111318967A (en) | Track passing type shot blasting machine for stone | |
| CN101306420A (en) | Kitchen refuse separator | |
| CN113385518B (en) | Waste glass treatment system | |
| KR20110094585A (en) | Pet bottle bale disassemble apparatus | |
| CN210973087U (en) | Electromagnetic iron remover feeding device with scattering mechanism | |
| CN113102023A (en) | Building rubbish processingequipment with smash and magnetic force select separately function | |
| KR100553024B1 (en) | Small aggregate makikng equipment that use disuse earth and sand | |
| CN108312386A (en) | A kind of method and apparatus screening plastics from domestic waste | |
| CN112675948A (en) | Garbage classification screening device for garbage disposal | |
| KR100881454B1 (en) | Apparatus for sorting waste from construction waste matter | |
| KR20090089509A (en) | Sorting machine of construction waste | |
| CN110586629A (en) | Garbage rough treatment method | |
| KR100423207B1 (en) | Suction separate apparatus for construction waste and construction-waste separating system | |
| CN212549957U (en) | Waste water mud piece solid refuse treatment system for building | |
| JP2002219447A (en) | Dust separating equipment | |
| EP2128883A1 (en) | Recycling plant for cathode-ray tube television receivers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |